Method and Device for Reducing Power Consumption of Stationary Terminal in Wireless Communication System

1. A method performed by a user equipment (UE) in a wireless communication system, the method comprising: transmitting, to a base station, a UE capability information message including information indicating that the UE is in a fixed state; based on the information included in the UE capability information message, receiving, from the base station, a first radio resource control (RRC) message including information for configuring the UE not to perform a measurement for a signal strength of a neighbor base station; transmitting, to the base station, a second RRC message as a response to the first RRC message; receiving, from the base station, a third RRC message for transitioning the UE to an RRC idle state; based on the third RRC message, transitioning to the RRC idle state; and receiving a paging message in the RRC idle state, wherein the UE in the fixed state receives the paging message from the base station which the UE performed the last access.

2. The method of claim 1, wherein the fixed state of the UE is determined based on a number of times of cell reselections in a predetermined time.

3. A method performed by a base station in a wireless communication system, the method comprising: receiving, from a user equipment, a user equipment (UE) capability information message including information indicating that the UE is in a fixed state; based on the information included in the UE capability information message, transmitting, to the UE, a first radio resource control (RRC) message including information for configuring the UE not to perform a measurement for a signal strength of a neighbor base station; receiving, from the UE, a second RRC message as a response to the first RRC message; and transmitting, to the UE, a third RRC message for transitioning the UE to an RRC idle state, wherein the UE in the fixed state receives a paging message from the base station which the UE performed the last access, in the RRC idle state.

4. The method of claim 3, wherein the fixed state of the UE is determined based on a number of times of cell reselections in a predetermined time.

5. The method of claim 3, further comprising: transmitting, to an access and mobility management function (AMF) entity, a UE radio capability information indication message including the information indicating that the UE is in the fixed state.

6. A user equipment (UE) in a wireless communication system, the UE comprising: a transceiver; and a controller coupled with the transceiver, and configured to: transmit, to a base station, a UE capability information message including information indicating that the UE is in a fixed state, based on the information included in the UE capability information message, receive, from the base station, a first radio resource control (RRC) message including information for configuring the UE not to perform a measurement for a signal strength of a neighbor base station, transmit, to the base station, a second RRC message as a response to the first RRC message, receive, from the base station, a third RRC message for transitioning the UE to an RRC idle state, based on the third RRC message, transition to the RRC idle state, and receive a paging message in the RRC idle state, wherein the UE in the fixed state receives the paging message from the base station which the UE performed the last access.

7. The UE of claim 6, wherein the fixed state of the UE is determined based on a number of times of cell reselections in a predetermined time.

8. A base station in a wireless communication system, the base station comprising: a transceiver; and a controller coupled with the transceiver, and configured to: receive, from a user equipment, a user equipment (UE) capability information message including information indicating that the UE is in a fixed state, based on the information included in the UE capability information message, transmit, to the UE, a first radio resource control (RRC) message including information for configuring the UE not to perform a measurement for a signal strength of a neighbor base station, receive, from the UE, a second RRC message as a response to the first RRC message, and transmit, to the UE, a third RRC message for transitioning the UE to an RRC idle state, wherein the UE in the fixed state receives a paging message from the base station which the UE performed the last access, in the RRC idle state.

9. The base station of claim 8, wherein the fixed state of the UE is determined based on a number of times of cell reselections in a predetermined time.

10. The base station of claim 8, wherein the controller is further configured to: transmit, to an access and mobility management function (AMF) entity, a UE radio capability information indication message including the information indicating that the UE is in the fixed state.